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Finding the Fourth Proportional to 202,187.10, 303,212.88 and 67,220.04

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Solution

The fourth proportional to 202,187.10, 303,212.88 and 67,220.04 is: 100,807.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,187.10 : 303,212.88 = 67,220.04 : x
  2. Step 2: Convert to fraction form
    202,187.10/303,212.88 = 67,220.04/x
  3. Step 3: Cross multiply
    202,187.10x = 303,212.88 × 67,220.04
  4. Step 4: Simplify right side
    202,187.10x = 20,381,981,922.12
  5. Step 5: Solve for x
    x = 20,381,981,922.12/202,187.10
  6. Step 6: Final answer
    x = 100,807.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.